it wont print on paper

can u help me with a problem, my brother mfc- 255 it wont print on paper.. it work properly but no ink on paper, if i look close i see dots on paper that it was trying to print but i dont know how it is not printing on paper can u help me with this problem ?

Open the printers’ ‘start’ menu and click on ‘control panel’ and tap on ‘printers and faxes’ icon. This sequence of moves will open up a new window and a list of printers will appear. The list includes all the printers currently setup on the serving computer.

Double click on the icon of the printer if the user wants to reconnect online. A pop-up window will then appear, this consist of details of all current print jobs scheduled on the printer.

And last, go to ‘printer’ in the menu window and tap ‘use printer offline’ and automatically this action will reconnect the printer ‘online’ from the ‘offline’ status.

3. Touch either "Black," "Color" or "All" to clean the black nozzle, a single color nozzle or all four nozzles, respectively.

4. Wait for the printer to finish cleaning the print head. When done, it returns to its Ready mode where you can either print or generate a Print Quality Check Sheet to see if the cleaning was successful. If it was not, repeat this process three more times.

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